#include <iostream>

using namespace std;

#include <string>

int main()
{
	string s0("hhhhhhhhhh");
	string s1(s0);

	cout << (void*)s0.c_str() << endl;
	cout << (void*)s1.c_str() << endl;

	s1.push_back('s');

	cout << (void*)s0.c_str() << endl;
	cout << (void*)s1.c_str() << endl;
	return 0;
}